Home / 27,605.79-38,095.86-15,504.60

Finding the Fourth Proportional to 27,605.79, 38,095.86 and 15,504.60

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Solution

The fourth proportional to 27,605.79, 38,095.86 and 15,504.60 is: 21,396.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,605.79 : 38,095.86 = 15,504.60 : x
  2. Step 2: Convert to fraction form
    27,605.79/38,095.86 = 15,504.60/x
  3. Step 3: Cross multiply
    27,605.79x = 38,095.86 × 15,504.60
  4. Step 4: Simplify right side
    27,605.79x = 590,661,070.96
  5. Step 5: Solve for x
    x = 590,661,070.96/27,605.79
  6. Step 6: Final answer
    x = 21,396.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.